JP2020020486A - Pressure adjustment damper, and exhaust device of air conditioner using pressure adjustment damper - Google Patents

Abstract

To provide an exhaust device capable of further reducing the total equipment cost of a pressure adjustment damper having high maintainability and durability, and wide versatility, and an exhaust device system in an air conditioner, and to keep a stable operation state by preventing short-circuit phenomenon and system abnormality in heat exchanging and exhausting.SOLUTION: A ratchet claw 28 is disposed on a base portion 3b of an arm 3 at a mounting portion side to a supporting base 15, of the arm 3 to a blade 2 of a pressure adjustment damper 1, and a ratchet gear 29 is mounted on a mounting portion 3c for a balance weight 4, of the arm 3. By disposing a ratchet mechanism 27 between the base portion 3b of the arm 3 and the mounting portion 3c of the balance weight 4, angle adjustment means to a mounting surface 2A of a blade 2, of the arm 3 is constituted.SELECTED DRAWING: Figure 6

Description

  The present invention relates to a pressure adjustment damper and an exhaust device of an air conditioner using the pressure adjustment damper, and the pressure adjustment damper of the present invention is, for example, a package type air conditioning system provided for a data center air conditioning system, In an air duct for exhausting heat exchange air of an outdoor unit densely arranged outdoors to the atmosphere, the pressure adjustment damper is effective for preventing the air pressure inside the air duct from changing to a predetermined pressure or more.

  Even in an environment where the pressure on the discharge side of an air conditioning outdoor unit installed outdoors is higher than the atmospheric pressure, the amount of exhaust air from the outdoor unit is increased by automatic control to maintain heat exchange exhaust heat, Patent Literature 1 discloses an invention for performing a stable operation of an outdoor unit of an air conditioning room.

  On the other hand, as another technique for adjusting the pressure in a target space, there is disclosed a pressure adjustment damper that releases excess air in a positive pressure space such as a clean room using wings having a counterweight (Patent Document 2).

JP 2003-148770 A Japanese Utility Model Publication No. 64-1344

  When an outdoor unit (outdoor device) of a packaged air conditioner is installed on an outdoor balcony (stand) of a building, external wind (strong wind) from the same direction may continuously blow on the outdoor unit. The continuous outside wind from the same direction includes a seasonal wind (north wind in winter) and a wind in a certain direction during the day (wind from the sea).

  When the outdoor unit is installed on both balconies on the upper and lower floors, an exhaust air duct having an opening on the exhaust discharge side of the outdoor unit in a direction facing the building to prevent a short circuit of heat exchange exhaust blown out by the outdoor unit. However, if the outside air continuously hits the air duct discharge port, heat exchange exhaust is hindered in the air duct, the backflow is continuous, and there is a problem that the heat exchange in the outdoor unit is not performed normally. .

  As a countermeasure for this problem, the outdoor device 200 of the air conditioner in Patent Document 1 performs a stable air-conditioning operation even when the outdoor unit is installed in an environment in which the pressure is higher than the atmospheric pressure on the outlet side thereof. It is an object of the present invention to provide an outdoor device of an air conditioner that can be maintained.

  However, in the outdoor device 200, as shown in FIGS. 18 and 19, an auxiliary fan (the booster fan) 206 is required, and in addition to the drive control means of the auxiliary fan 206, a control system for the outdoor fan 204 and its control system The installation of an operating device and the like is required (remodeling of an outdoor unit), which requires a large amount of equipment cost such as additional construction of a power supply system and automatic control construction, and does not save energy.

Further, the backflow prevention of the atmosphere in the outdoor unit 200 is performed by the shutter 208, but the backflow of the exhaust of the outdoor unit 211 due to the strong wind cannot be prevented in the installation under the strong wind environment from the exhaust passage area 209. The short circuit phenomenon cannot be prevented.
When the outdoor units 200 are arranged in high density, there is a risk of a short circuit due to poor exhaustion of exhaust heat even if the backflow is prevented.

  On the other hand, as a device for releasing a pressure in a space to prevent a backflow of air, a fine pressure adjustment damper disclosed in Patent Document 2 is known. The micro-pressure damper is used in a clean room such as a clean room, but the pressure release adjustment width is narrow, the number of components is large, and there is no durability to withstand exposure to sunshine, wind and rain, and changes in temperature over a long period of time. . Therefore, when used for a long time on the upper floor balcony of a building, parts (weights and screws) of the damper fall and pose a danger to pedestrians on the ground.

  In addition, the configuration of the balance weight 121 and the lever portion 120 provided in the configuration of the pressure adjusting blade 103 itself in FIG. 15 is disclosed, but the moment adjusting means having the configuration is technically described in FIGS. 16 and 17. As shown, by changing the fixed position of the counterweight 121 from the fulcrum 122 of the frame 102 and the blade 103 or by changing the number thereof, the ease of opening (moment of force) of the pressure adjusting blade 103 can be adjusted.

  That is, it can be obtained from the moment of force M = F × L (F: force, L: distance from the fulcrum 122 to the fixed position of the counterweight 121).

  However, in the configuration of the moment adjusting means, a screw for fixing the counter weight 121 is required to change the fixing position with respect to the lever portion 120, and the operation is complicated and the fixing position is longer than the length of the lever portion 120. However, there is a disadvantage that the room for adjustment is narrow.

  Further, in the case of the moment adjusting means for changing the number of the counterweights 121 with respect to the lever portion 120 shown in FIG. 15, increasing and decreasing the counterweight 121 with respect to the lever portion 120 requires a troublesome work and has a disadvantage that workability is poor.

  Therefore, the present invention solves the above-mentioned drawbacks in the fine pressure adjustment damper 100 of Patent Document 2 and, in the moment adjusting means, adjusts the ease of opening of the blade 103 (moment of force) of the counter weight 121 with respect to the lever portion 120. It is possible to adjust the operation start pressure to a specified pressure in a wide range without being limited to the fixed position and number, prevent the members from loosening due to vibration, and adopt a material with excellent durability and weather resistance, high maintainability and versatility It is intended to provide a wide pressure adjustment damper.

  The development of such a pressure adjustment damper provides a pressure adjustment damper that can eliminate the backflow of the exhaust air duct in the outdoor device 200 described in Patent Literature 1, and provides an exhaust device for air conditioning equipment using the pressure adjustment damper. It is the purpose.

  Therefore, claim 1 as means for solving the above-mentioned problem of the present invention is to dispose a pressure adjusting blade in a front opening portion of a frame body having openings on both front and rear sides so as to be freely opened and closed, and In a pressure adjusting damper configured by providing moment adjusting means on the blade, the blade is configured by one or more blades, and the moment adjusting means includes an arm attached to the blade and a balance weight attached to the arm and a vertical direction. The arm angle adjusting means is provided.

  According to a second aspect of the present invention, in the pressure adjusting damper according to the first aspect, the arm attached to the blade of the moment adjusting means is constituted by one or a plurality of arms.

  According to a third aspect, in the pressure adjusting damper according to the first or second aspect, the balance weight of the arm attached to the blade of the moment adjusting means is movably attached in the length direction of the arm, and adjusts the fixed position thereof. It is characterized in that it is configured so that

  According to a fourth aspect of the present invention, in the pressure adjusting damper according to the first to third aspects, the vertical angle adjusting means of the arm of the moment adjusting means changes the arm having a bent portion bent at an arbitrary angle from an arm having a bent portion to a damper adjusting condition. It is characterized by selecting and fitting a suitable arm.

  According to a fifth aspect of the present invention, in the pressure adjusting damper according to the first to third aspects, the vertical angle adjusting means of the arm of the moment adjusting means varies a vertical angle of the arm with respect to the blade by a ratchet mechanism mounted on the arm. It is characterized by being freely configured.

  According to a sixth aspect of the present invention, in the pressure adjusting damper according to any one of the first to third aspects, the angle adjusting means of the arm of the moment adjusting means can change the vertical angle of the arm with respect to the blade by a stepped washer mechanism mounted on the arm. It is characterized by having comprised in.

  According to a seventh aspect of the present invention, in the pressure adjusting damper according to the first to fourth aspects, a counterweight capable of adjusting the weight of the blade as a moment adjusting means is detachably attached to the blade. And

  Claim 8 is through the air duct member having an opening in a direction facing a building including an opening for connection between an outdoor discharge opening and a discharge opening of an outdoor unit of an air conditioner such as a packaged air conditioner. In the exhaust passage of the air conditioner configured to be able to discharge the exhaust from the outdoor unit to the outside, by providing a pressure adjusting damper having moment adjusting means on a surface of the duct member facing the outdoor exhaust opening, It is characterized by comprising.

  According to a ninth aspect of the present invention, the exhaust from the outdoor unit is discharged to the outside via a duct member having an opening for connection between the outdoor discharge opening and the discharge opening of an outdoor unit of an air conditioner such as a packaged air conditioner. In the exhaust passage of the air conditioner configured to be able to perform, a pressure adjusting damper having moment adjusting means is mounted on a surface of the duct member facing the outdoor discharge opening, and a pressure adjusting damper is provided from the outdoor discharge opening of the duct member. By discharging the external air flowing into the duct member through the pressure adjusting damper, a short circuit phenomenon in which the exhaust air from the outdoor unit due to the external air from the outdoor discharge opening of the duct member flows backward and occurs. It is characterized in that it is configured to be able to prevent the occurrence of a system abnormality.

  According to a tenth aspect of the present invention, in the exhaust device for an air conditioner according to the eighth to ninth aspects, the moment adjusting means provided on the pressure adjusting damper includes an arm attached to a back surface of a blade that is openably and closably attached to a front opening of the frame. It is characterized in that the arm is provided with a balance weight that can change its fixed position in the length direction of the arm.

  According to an eleventh aspect, in the exhaust device for an air conditioner according to the eighth to tenth aspects, the pressure adjusting damper is configured by the pressure adjusting damper according to the first to seventh aspects.

  According to the pressure adjusting damper according to claims 1 to 7 of the present invention, in the configuration of the blade, the moment adjusting means for adjusting the ease of opening (moment of force) of the blade is adjusted by increasing or decreasing the number of arms or the number of balance weights. In addition to providing a wide range of pressure adjustments to fine adjustments by providing angle adjustment means to the mounting surface of the arm blades as well as the arm, the simplicity and speed of pressure adjustment work at the start of operation of the pressure adjustment damper In addition, it has durability to prevent parts (arms, balance weights, screws) from falling off during long-term operation outdoors. Due to this durability, a stable operation of the pressure adjusting mechanism and a component falling accident against a pedestrian or the like downstairs can be prevented. Also, by reducing the number of parts, it is possible to provide a pressure adjustment damper that can contribute to simplifying maintenance.

  According to the exhaust device for an air conditioner according to claims 8 to 11 of the present invention, the air in the outdoor unit is replaced with a pressure adjusting means such as an auxiliary fan indispensable for adjusting the pressure of the duct member in the conventional patent document 1. By equipping the outlet of the flow path with the pressure adjusting damper of the present invention, a dedicated outdoor device for taking measures against the external wind pressure shown in Patent Document 1 is not required. In addition, it eliminates the need for an automatic control system and electrical work for pressure adjustment, reduces overall equipment costs, prevents system abnormalities due to short circuit exhaust heat, and maintains a stable air conditioner operating state. It is possible to provide an exhaust device capable of performing the operation.

FIG. 1 is a partially cutaway front view showing a pressure adjusting damper according to a first embodiment of the present invention. FIG. 2 is a longitudinal sectional side view showing a pressure adjusting damper according to a first embodiment of the present invention, with a part cut away. FIG. 3 is a partially cutaway front view showing a pressure adjusting damper according to a second embodiment of the present invention. FIG. 4 is a partially cutaway side view showing a pressure adjusting damper according to a second embodiment of the present invention. FIG. 5 is a longitudinal sectional side view showing a pressure adjusting damper according to a second embodiment of the present invention, with a part cut away. FIG. 6 is an explanatory view showing an embodiment of the arm angle adjusting means. FIG. 7 is an explanatory view showing an embodiment of the arm angle adjusting means. FIG. 8 is an explanatory view of the operation of the arm angle adjusting means of FIGS. FIGS. 9A and 9B are explanatory views showing an embodiment of the arm angle adjusting means showing another embodiment different from FIGS. FIG. 10 is an explanatory view showing an embodiment of an arm angle adjusting means showing another embodiment different from those of FIGS. FIGS. 11A to 11C are explanatory views showing another embodiment of the arm angle adjusting means different from those of FIGS. FIG. 12 is an explanatory view showing Embodiment 1 of the outdoor device of the package type air conditioner in the server room of the present invention. FIG. 13 is an explanatory view showing a state of attachment to a building showing a second embodiment of the outdoor device of the package type air conditioner of the server room of the present invention. FIG. 14 is an explanatory view showing Embodiment 2 of the outdoor device of the package type air conditioner in the server room of the present invention. FIG. 15 is a side sectional view of the fine pressure adjusting damper of Patent Document 2. FIG. 16 is an explanatory view of moment adjusting means in a conventional pressure adjusting damper. FIG. 17 is an explanatory view of a moment adjusting means in a conventional pressure adjusting damper. FIG. 18 is a side sectional view of the outdoor device of Patent Document 1. FIG. 19 is a perspective view of an outdoor device of Patent Document 1.

  The pressure adjustment damper of the present invention is a pressure adjustment damper configured by equipping a front opening of a frame body having openings on both front and rear sides with a pressure adjusting blade so as to be openable and closable and providing a moment adjusting means on the blade. Wherein the blade is constituted by one or a plurality of blades, and the moment adjusting means is constituted by providing an arm attached to the blade and a balance weight to the arm and providing an angle adjusting means with respect to a mounting surface of the blade. The outdoor device of the air conditioner discharges exhaust air from the outdoor unit via a duct member including an opening for outdoor discharge and a connection opening for the discharge opening of the outdoor unit of the air conditioner such as a packaged air conditioner. In an outdoor device of an air conditioner configured to be able to discharge to the outside, an outdoor discharge opening of the duct member and It carried configured by providing the pressure adjustment damper comprising moment adjustment means on the opposing surface.

A first embodiment of the pressure adjusting damper 1 of the present invention will be described with reference to FIGS.
FIG. 1 is a front view of the damper 1, and FIG. 2 is a central longitudinal side view of the same figure.

  In FIG. 1, reference numeral 10 denotes a case formed of a rectangular frame, and the blade 2 is openably and closably attached to a front opening 10a of the case 10 via a rotating shaft 23 of a bearing 22 attached to left and right side frames 11, 12. In addition, a punching cover 13 is provided at the rear opening 10b.

  Further, a plurality of counterweights 14 are detachably attached to the back of the blade 2 and the arm 3 is detachably attached to an arm support 15 fixed to the center of the front surface. Is mounted by variably mounting the mounting position in the length direction of the arm 3.

  After the arm 3 is inserted into a mounting hole 15a formed in the arm support 15 so that the mounting end 3a can be detachably attached to the arm support 15, the mounting screw 3a Although it is configured so that it can be fixed while being fastened by the mounting 16, the mounting end 3a of the arm 3 is inserted into the mounting hole 15a of the arm support base 15 as necessary, and then this is used for welding or other means. Alternatively, it is also possible to fix and secure by fixing without using the fastening screw 16.

  16 and 17 are fastening screws for the arm 3 and the balance weight 4, 18 is a packing attached to the opening edge of the front opening 10a of the case 10, 19 is a support frame for mounting the blade 2, and 20 is the support frame 19. Fixing screws 21 fixed to the frame of the case 10 indicate nuts for preventing the balance weight 4 from falling off.

  As shown in FIG. 2, the pressure adjusting damper 1 having the above-described configuration is configured such that the case 10 of the pressure adjusting damper 1 is connected to the opening 32 opened in the mounting frame 31 of the required building via the gasket 33 as shown in FIG. It is configured by mounting.

  FIGS. 3 to 5 show a second embodiment of the pressure adjustment damper 1 of the present invention. In the configuration of the pressure adjustment damper 1 shown in the first embodiment of FIG. 1, the blade 2 of the first embodiment of FIG. The blades 2 a and 2 b are configured to be attached to the opening 10 a of the case 10 so as to be openable and closable.

The two blades 2a and 2b individually exert the function and effect of the blade 2 in the first embodiment, and have a function as a moment adjusting means for more finely adjusting the easiness of opening with respect to the external wind pressure 6. It was done.
In addition, about the structure of the blade | wing 2a, 2b in FIGS. 3-5, and another structure, the same number is attached | subjected about the same structure as FIGS.

In addition, a stopper mechanism 26 is provided on each of the blades 2a and 2b of the pressure adjusting damper 1 of the second embodiment for pressure adjustment in controlling the operation state of each of the blades 2a and 2b. It is configured to be able to.
Incidentally, reference numeral 24 denotes a rectifying plate stretched over the opening 10a, and reference numeral 25 denotes a side plate provided at the back opening 10b.

As the pressure adjusting damper 1 described in the first and second embodiments, the embodiment in which the blades 2, 2a, and 2b are attached to the opening 10a so as to be openable and closable is shown. Can be implemented by applying a fine pressure adjusting damper (not shown) described in Japanese Utility Model Laid-Open No. 64-1344.
The description of the fine pressure adjusting damper described in Japanese Utility Model Laid-Open Publication No. 64-1344 refers to the invention described in the same publication, and the description and illustration are omitted.

  Now, in the pressure adjusting damper 1 having the above configuration, the action as the moment adjusting means for the external wind pressure 30 is achieved by the blades 2 mounted on the case 10. FIG. This will be described more specifically.

First, the external wind pressure 30 shown in FIG. 8 can be evacuated by the weight (blade weight) of the blades 2 of the pressure adjustment damper 1. The arm 3 is attached to the blades 2 in FIG. The balance weight 4 can be configured such that the fixed position is movably attached to the fixed weight, and the balance weight 4 is detachable, and the number of the balance weight 4 can be freely increased or decreased.
Further, a configuration has been described in which a plurality of counterweights 14 are attached to the back surface of the blade 2 so that the counterweights 14 can be attached and detached and the number of counterweights 14 can be increased or decreased.

  However, while the outside air pressure 30 is evacuated by the blades 2 and discharged through the opening 10 a provided in the case 10 of the pressure adjusting damper 1, the action of the moment adjusting means by the blades 2 as described above. As shown in FIG. 1, it can be constituted by adjusting the blade 2 and the arm 3, the balance weight 4 thereof and the mounting position thereof.

  Arbitrary pressure adjustment setting can be performed for the balance weight 4 and its mounting position by preparing a correlation graph between the pressure value in the air duct and the position of the balance weight 4 in advance.

  That is, in addition to the pressure adjustment by the weight of the blade 2, the arm 3 is attached, the balance weight 4 is attached to the arm 3, and the attachment position of the arm 3 is changed or the number of the balance weights 4 is changed. Ease of opening (moment of force) can be adjusted.

  However, depending on the moment adjusting means having such a configuration, the fixing screw 17 is required for fixing the balance weight 4 to the arm 3 and adjustment of the mounting position requires a work of changing the mounting position. At the same time, the mounting position is limited to the length range of the arm 3.

  Therefore, a disadvantage in the construction and operation of the moment adjusting means shown in FIG. 1 is that the angle of the arm 3 with respect to the mounting surface of the blade 2 is set at the angle 3A of the arm 3 between the weight position A and the weight position B of the balance weight 4 shown in FIG. , The easiness of opening of the blade 2 with respect to the external wind pressure 30 (moment of force M) changes (that is, the easiness of opening of the blade 2 changes), and at the same time, the pressure adjustment and the pressure adjustment damper 1 in a wide range. The operation start pressure can be adjusted steplessly, and a wide range of moment adjustment can be ensured, so that the pressure adjustment range can be widened.

In FIG. 8, assuming that the easiness of opening of the blade 2 is a force moment M, the force moment M = F × L (F: force, L: distance from a fulcrum (axis)) and FIG. in also the force moment M = F × L (F: _force, F a, _{F B:} total weight weight of the blade weight and the weight balance mounting position a or B, L: distance from the _fulcrum, L a, _{L B} : Distance from the fulcrum at the weight balance position A or B).

  Further, a specific configuration means for changing the angle 3A of the arm 3 from the weight position A of the balance weight 4 to the weight position B in the arm 3 will be specifically described in a third embodiment of FIGS. .

  In FIG. 2, the own weight of the blade 2 can be changed by a counterweight 14 detachably attached to the back surface of the blade 2, and this configuration also functions as a moment adjusting means for the external wind pressure 30. Needless to say.

  6 and 7 show a third embodiment of the pressure adjusting damper 1 according to the present invention. In particular, the angle 3A of the arm 3 with respect to the mounting surface 2A of the blade 2 described in FIG. 8 (the balance weight position A and the balance weight position A in FIG. 8). By changing the angle of the weight position B), the ease with which the blade 2 opens with respect to the external wind pressure 30 can be adjusted steplessly.

  Therefore, an embodiment of a specific configuration as an angle adjusting means of the arm 3 for adjusting the angle 3A is shown.

  FIGS. 6 and 7 show a mounting surface of the blade 3 of the arm 3 by interposing a ratchet mechanism 27 between the mounting base 15 for mounting the arm 3 on the mounting surface of the blade 2 and the arm 3 as an angle adjusting means. It is configured such that it can be firmly fixed while adjusting the angle 3A with respect to 2A (the angle 3A between the weight position A and the weight position B in FIG. 8).

  That is, in FIG. 6, the ratchet claw 28 is provided on the base 3b of the arm 3 on the side of the mounting portion of the arm 3 to the support base 15 with respect to the blade 2 of the pressure adjusting damper 1, and the ratchet gear 29 is attached to the mounting portion 3c of the balance weight 4 of the arm 3. In this case, a ratchet mechanism 27 is interposed between the base portion 3b of the arm 3 and the mounting portion 3c of the balance weight 4 to constitute angle adjusting means for the mounting surface 2A of the blade 2 of the arm 3.

  In the ratchet mechanism 27 shown in FIG. 6, for example, the position of the balance weight 4 is adjusted at five angles of 0 °, 30 °, −30 °, −60 °, and −90 ° with respect to the angle 3A of the blade 2 with respect to the mounting surface 2A. Examples can be given.

  A conventionally known ratchet can be used for the configuration of the ratchet mechanism 27. The ratchet gear 29 can be rotated only in one direction, and the ratchet claw 28 is rotated by an ON / OFF switching lever 28a. Can be controlled.

  FIGS. 9 and 10 show an embodiment using a stepped washer mechanism 60 instead of the ratchet mechanism 27 as the vertical angle adjusting means of the arm 3 in the configuration of the pressure adjusting damper 1 of the third embodiment. Things.

  That is, FIG. 9 shows that the arm 3 attached to the blade 2 is constituted by a pair of blade bolts 61, 62 shown in FIG. 9A, and the blade portions 61a, 62a of the pair of blade bolts 61, 62 are pivotally attached. 63, and a stepped washer mechanism 60 is interposed in the pivoted portion 64, whereby the blade bolt 62 (the mounting portion 3c of the balance weight 4) is attached to the blade bolt 61 (the base 3b of the arm 3). The angle 3A of the arm 3 with respect to the mounting surface 2A of the blade 2 is configured to be variable in a stepless manner.

  As shown in FIG. 9 (b), the stepped washer mechanism 60 interposed in the pivot 64 between the blades 61a, 62a by the pivot bolts 63 of the blade bolts 61, 62 includes the blades 61a, 62a. A spring washer 68, 69 is interposed between the washers 65-67, and spring washers 68, 69 are interposed therebetween. Double nuts 70, 71 for tightening the spring washers 68, 69 are screwed to the pivot bolt 63. I have.

  That is, the angle of the blade bolt 62 with respect to the blade bolt 61 is variably adjusted while the fastening force of the double nuts 70 and 71 is loosened, and then the hinge 64 of the blade portions 61a and 62a is adjusted and fixed to a required angle. The angle 3A of the arm 3 with respect to the mounting surface 2A of the blade 2 can be adjusted, so that the required effect of the angle adjusting means can be obtained.

  Although the specific configuration of the arm 3 in FIG. 9A is not shown, the configuration is the same as that in the first to third embodiments, and the mounting end of the arm 3 is used. A bolt portion 61b of the blade bolt 61 serving as 3a has an end portion 61c that is detachably attached to a mounting hole 15a formed in the support base 15 of the blade 2, and is screwed into a mounting hole 15a of the support base 15 (not shown). ) Is provided, and the end portion 61c of the bolt portion 61b is attached by screwing. When the detachable operation is not required, the end portion 61C is fixed to the mounting hole 15a by welding or the like. Performed by

  Further, the balance weight 4 can be attached to the bolt portion 62b of the blade bolt 62 such that the balance weight 4 can be screwed (movable) in the length direction of the screw of the bolt portion 62b.

  Note that specific examples of these configurations will be clarified by an example of FIG. 10 described later.

  Numeral 72 in FIG. 9B denotes a plate fixing nut fixed to the end 63a of the pivot bolt 63.

  Next, FIG. 10 shows a pair of blade bolts 61 and 62 shown in FIG. 9A instead of the spring washers 68 and 69 and the washers 65 to 67 of the stepped washer mechanism 60 shown in FIG. This shows an embodiment in which the stepped washer mechanism 60 is configured by interposing anti-loosening washers 73 and 74 on opposing surfaces of the portions 61a and 62a.

  In FIG. 10, the same reference numerals are given to the configurations described in the embodiments of FIGS. 9A and 9B, and the description thereof will be omitted.

  Numerals 73 and 74 in FIG. 10 denote nuts for fixing the balance weight 4 attached to the bolt portion 62b of the blade plate bolt 62 so as to be movable and adjustable in the longitudinal direction of the bolt portion 62b.

  Therefore, the arm 3 composed of the pair of blade bolts 61 and 62 of FIG. 10 attaches the end 61 c of the blade bolt 61 to be the mounting end 3 a of the arm 3 with respect to the support 15 of the blade 2. It is attached by attaching it to the hole 15a.

  And, the locking nut washers 73 and 74 interposed on the facing surfaces of the blade plate portions 61a and 62a of the blade bolts 61 and 62 constituting the stepped washer mechanism 60 are fixed to the bolt head 63a of the pivot bolt 63 by the double nuts 70 and 71. By fastening, the pivotal connection 64 of the blade portions 61a, 62a of the blade bolts 61, 62 can be fixed.

  In such a fixed state, the blade bolt 62 is rotated in the direction of the mounting surface 2A of the blade 2 while loosening the tightening force of the double nuts 70 and 71 of the pivot bolt 63 to the mounting surface 2A of the blade 2 of the blade bolt 62. The angle 3A (vertical angle of the arm) can be varied.

  That is, the angle 3A of the mounting portion 3c of the balance weight 4 of the arm 3 with respect to the mounting surface 2A of the blade 2 can be adjusted by rotating the blade bolt 62.

  Then, after adjusting the blade bolt 62 to a required angle by rotating the blade bolt 62 and adjusting the same, the double nuts 70 and 71 again lock the pivotal attachment portion 64 of the blade plate portions 61a and 62b with a washer 73, By tightening via the arm 74, the mounting operation of the arm 3 with respect to the mounting surface 2A of the blade 2 at a required angle can be achieved, and the same angle that can be achieved by the angle adjusting means of the arm 3 described above. Can also achieve the effect.

  FIG. 11 shows another embodiment different from the embodiment of the angle adjusting means in the configuration of the pressure adjusting damper 1 described above.

  FIGS. 11A to 11C are explanatory views showing the main parts of an arm 3 configured to be detachably attached to a support base 15 of the blade 2 in the configuration of the pressure adjusting damper 1. It is.

  In the configuration of the pressure adjusting damper 1 described above by the angle of each bent portion 80 by each arm 3 in FIGS. 11A to 11C, the angle of the arm 3 with respect to the mounting surface 2A of the blade 2 in FIG. 3A (that is, the angle of the arm 3 in the vertical direction) can be adjusted, and each arm 3 shown in FIGS. 11A to 11C is prepared so that the pressure adjustment required for the pressure adjustment damper 1 is required. According to the angle of the bent portion 80 of each arm 3, by selecting each arm 3 (the arm 3 that meets the damper adjustment conditions of the pressure adjustment damper 1) and mounting it on the support base 15 of the blade 2 The required pressure adjusting effect can be obtained.

  In this embodiment, a plurality of arms 3 having a bent portion 80 having a required angle are required, and at the same time, an operation for replacing the arms 3 is required. It is preferable that the arm 3 having a bending angle having a pressure adjustable range required for the device 1 is fixedly configured, and is adjusted while being adjusted by other moment adjusting means.

  FIGS. 12 and 13 show an embodiment in which an exhaust device of an air conditioner is configured using the pressure adjustment dampers 1 of the above-described first to third embodiments. FIG. 12 shows an embodiment as an outdoor device. FIG.

  FIG. 12 shows an embodiment in which an exhaust device 40 is installed in an outdoor unit 41 of a package type air conditioner on a building balcony, and the outdoor unit 41 has a connection between an outdoor exhaust opening 42 and an outdoor unit exhaust outlet 41a. A duct member (L-shaped duct) 44 having an opening 43 is provided. The duct member 44 has an outdoor discharge opening 42 in a direction facing the building.

  Then, the outdoor unit 40 is mounted by equipping the side wall portion 45 of the duct member 44 facing the outdoor discharge opening 42 with the pressure adjusting damper 1 having the moment adjusting means described in the first to third embodiments. Constitute.

  FIG. 13 shows an embodiment in which the exhaust device 40 of FIG. 12 is installed on a balcony 51 on each floor of a building 50 of a data center.

  Therefore, according to the exhaust device 40 in FIG. 12, the intake air 52 from each floor outdoor unit by the outdoor unit 41 is exhausted by the outdoor unit 41 to the outside 53 via the heat exchange exhaust duct member 44.

  Then, when there is no wind or weak wind in the outside 53 with respect to the exhaust device 40, the air can be discharged to the outside through the discharge opening 42 of the duct member 44 without any problem. However, when the wind is strong, the exhaust air from the outdoor unit 41 is pushed back by the strong wind.

  However, according to the exhaust device 40 of the present invention, since the pressure adjusting damper 1 is provided on the side wall portion 45 of the surface facing the discharge opening 42 of the duct member 44, the moment adjusting means by the blades 2 of the pressure adjusting damper 1 is provided. As a result, the exhaust gas pushed back by the strong wind from the opening 10a of the pressure adjusting damper 1 can be discharged, and by maintaining the pressure in the duct member 44 near a predetermined pressure close to the atmospheric pressure, the outdoor unit 40 can normally operate The exchange exhaust is exhausted to the outside through the exhaust opening 42, so that the short circuit phenomenon can be prevented.

  Therefore, it is possible to prevent the back-up of exhaust heat due to the back-flow of exhaust gas from the exhaust device 40 to the outdoor unit 41 at the time of strong wind by the pressure adjustment damper 1 and to prevent the occurrence of a high-temperature abnormality alarm in the package-type air conditioner of the outdoor unit 41. it can.

  In other words, when a high-temperature alarm is issued, the packaged air conditioner stops or its performance is reduced.If multiple alarms are issued at the same time, server devices in the data center room cannot be cooled and server devices stop abnormally. However, this problem can also be solved by the outdoor device 40 of the present invention.

  FIG. 14 shows an embodiment in which the exhaust device 40 of the fourth embodiment is replaced by a duct member 44 and is replaced by a silencing chamber 46 provided above an outdoor unit 41 of a packaged air conditioner.

  In the configuration of the noise reduction chamber 46, the same components as those of the duct member 44 of the sixth embodiment are denoted by the same reference numerals, and description thereof will be omitted.

  The same operation and effect as in the sixth embodiment can be obtained, and the description thereof is omitted.

DESCRIPTION OF SYMBOLS 1 Pressure adjustment damper 2, 2a, 2b Blade 2A Arm mounting surface 3 Arm 3A Arm 3 angle 3a Arm mounting end 3b Base 3c Mounting portion 4 Balance weight 10 Case 10a Front opening 10b Rear opening 11 Right frame 12 Left frame 13 Punching cover 14 Counter weight 15 Support base 15a Mounting holes 16, 17 Tightening screws 18 Packing 19 Support frame 20 Fixing screw 21 Captive nut 22 Bearing 23 Rotating shaft 24 Straightening plate 25 Side plate 26 Stopper mechanism 27 Ratchet mechanism 28 Ratchet claw 29 Ratchet gear 30 External wind pressure 31 Mounting frame 32 Opening 40 Exhaust device 41 Outdoor unit 41a Outdoor unit outlet 42 Outdoor exhaust opening 43 Connection opening 44 Duct member 45 Side wall 46 Sound absorbing chamber 50 Building 51 Balcony 52 Inhalation 53 Outdoor 60 Stepped washer mechanism 61, 62 Blade plate bolt 61a, 62a Blade plate portion 61b, 62b Bolt portion 61c Bolt end 63 Pivot bolt 64 Pivot portion 65-67 Washer 68, 69 Spring washer 70, 71 Double nut 72 Plate nut 73 , 74 Locking washer 80 Bending part 81 Angle adjusting part

Claims (11)

At the front opening of the frame body with openings on both front and rear sides, pressure adjusting blades are equipped to open and close freely,
In the pressure adjusting damper configured by providing the blade with a moment adjusting means,
The blade is configured by one or a plurality of blades, and the moment adjusting means is configured by providing an arm attached to the blade, a balance weight to the arm, and a vertical arm angle adjusting means. Pressure adjustment damper.   The pressure adjusting damper according to claim 1, wherein the arm attached to the blade of the moment adjusting means is constituted by one or a plurality of arms.   3. The balance weight of the arm attached to the blade of the moment adjusting means is configured to be movably attached in the length direction of the arm so that the fixed position thereof can be adjusted. Pressure adjustment damper.   The angle adjusting means of the arm of the moment adjusting means is configured by selecting and mounting an arm that meets a damper adjusting condition from a plurality of arms having different bending angles of a bent portion. 3 adjustment dampers.   The pressure adjusting damper according to claim 1, wherein the angle adjusting means of the arm of the moment adjusting means is configured such that a vertical angle of the arm with respect to the blade is variable by a ratchet mechanism mounted on the arm.   The pressure adjusting damper according to claim 1, wherein the angle adjusting means of the arm of the moment adjusting means is configured such that a vertical angle with respect to a blade of the arm can be changed by a stepped washer mechanism mounted on the arm. .   7. The pressure adjusting damper according to claim 1, wherein a counterweight as a moment adjusting means for adjusting a weight of the blade is detachably attached to the blade. Through a duct member having an opening for connection between an outdoor discharge opening and a discharge opening of an outdoor unit of an air conditioner such as a package type air conditioner,
In the exhaust passage of the air conditioner configured to be able to discharge the exhaust from the outdoor unit to the outside,
An exhaust device for an air conditioner, wherein a pressure adjusting damper having a moment adjusting means is provided on a surface of the duct member facing the outdoor discharge opening. Through a duct member having an opening for connection between an outdoor discharge opening and a discharge opening of an outdoor unit of an air conditioner such as a package type air conditioner,
In the exhaust passage of the air conditioner configured to be able to discharge the exhaust from the outdoor unit to the outside,
A pressure adjustment damper equipped with a moment adjustment means is mounted on a surface of the duct member facing the outdoor discharge opening,
By discharging the external air flowing into the duct member from the outdoor discharge opening of the duct member through the pressure adjustment damper,
An air conditioner characterized in that it is configured to be able to prevent a short circuit phenomenon or a system abnormality caused by backflow of exhaust air from the outdoor unit due to external wind from an outdoor exhaust opening of the duct member. Exhaust system.
air conditioner   The moment adjusting means provided in the pressure adjusting damper is provided with an arm attached to the back of a blade attached to the front opening of the frame so as to be openable and closable, and a balance weight for changing the fixed position in the length direction of the arm. The exhaust device for an air conditioner according to claim 8, wherein the exhaust device is configured.   The exhaust device for an air conditioner according to any one of claims 8 to 10, wherein the pressure adjustment damper includes the pressure adjustment damper according to any one of claims 1 to 7.

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